style(points): 优化积分商品卡片排版

frontend/src/features/points/views/PointsMallView.vue

@@ -456,7 +456,7 @@ function sourceLabel(source: string) {
 
 .product-card {
   display: grid;
-  grid-template-rows: 150px 1fr auto;
+  grid-template-rows: 168px 1fr auto;
   overflow: hidden;
 }
 
@@ -478,25 +478,45 @@ function sourceLabel(source: string) {
 .product-copy {
   display: grid;
   align-content: start;
-  gap: 7px;
-  padding: 15px;
+  gap: 9px;
+  padding: 17px 17px 15px;
+}
+
+.product-copy > span {
+  display: inline-flex;
+  align-items: center;
+  justify-self: start;
+  min-height: 20px;
+  padding: 0 8px;
+  border-radius: 999px;
+  background: #fff3eb;
+  line-height: 20px;
 }
 
 .product-copy h2,
 .ledger-section h2 {
   margin: 0;
-  font-size: 17px;
+}
+
+.product-copy h2 {
+  color: #20242a;
+  font-size: 18px;
+  line-height: 1.4;
+  overflow-wrap: anywhere;
 }
 
 .product-copy p {
   margin: 0;
   color: #6b7280;
   font-size: 12px;
-  line-height: 1.6;
+  line-height: 1.7;
 }
 
 .product-copy small {
+  display: block;
+  margin-top: 1px;
   color: #9ca3af;
+  line-height: 1.5;
 }
 
 .product-action {
@@ -504,7 +524,7 @@ function sourceLabel(source: string) {
   align-items: center;
   justify-content: space-between;
   gap: 12px;
-  padding: 13px 15px;
+  padding: 14px 17px;
   border-top: 1px solid #f0f1f4;
 }
 
@@ -864,15 +884,21 @@ function sourceLabel(source: string) {
 
 .is-mobile .product-cover {
   grid-row: 1 / 3;
-  min-height: 144px;
+  min-height: 152px;
 }
 
 .is-mobile .product-copy {
-  padding: 12px;
+  gap: 7px;
+  padding: 14px;
+  border-left: 1px solid #f3f4f6;
+}
+
+.is-mobile .product-copy h2 {
+  font-size: 16px;
 }
 
 .is-mobile .product-action {
-  padding: 10px 12px;
+  padding: 11px 14px;
 }
 
 @media (max-width: 600px) {